A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Effect of COVID‐19 Pandemic on Epidemiology and Antimicrobial Susceptibility of Campylobacter
Species, Salmonella enterica and Yersinia enterocolitica in Southwest Finland 2018–2022





TekijätOrpana, Tanja; Kallonen, Teemu; Hakanen, Antti J.; Gunell, Marianne

KustantajaWiley

Julkaisuvuosi2026

Lehti: APMIS

Artikkelin numeroe70187

Vuosikerta134

Numero3

ISSN0903-4641

eISSN1600-0463

DOIhttps://doi.org/10.1111/apm.70187

Julkaisun avoimuus kirjaamishetkelläAvoimesti saatavilla

Julkaisukanavan avoimuus Osittain avoin julkaisukanava

Verkko-osoitehttps://doi.org/10.1111/apm.70187

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/detail/Publication/516251411

Rinnakkaistallenteen lisenssiCC BY

Rinnakkaistallennetun julkaisun versioKustantajan versio


Tiivistelmä

This study investigated the effect of the COVID-19 pandemic on the epidemiology and antimicrobial susceptibility of fecal Campylobacter spp., Salmonella enterica, and Yersinia enterocolitica strains in Southwest Finland from 2018 to 2022. Results show that the number of travel-associated S. enterica and Campylobacter spp. declined markedly from autumn 2019 to autumn 2020 and have recovered gradually. Antimicrobial susceptibility testing was performed on bacterial strains isolated from PCR-positive fecal specimens. Resistance patterns fluctuated throughout the study period. Among C. jejuni, ciprofloxacin resistance averaged 58% in domestic (n = 155) and 88% travel-associated (n = 10) strains, while tetracycline resistance averaged 36% and 63%, respectively; erythromycin resistance was not detected. In S. enterica, resistance averaged 42% and 33% to ampicillin, 33% and 45% to fluoroquinolones, 4% and 6% to cefotaxime, and 0% and 2% to co-trimoxazole, in domestic (n = 24) and travel-associated (n = 32) strains, respectively. Among domestic Y. enterocolitica strains (n = 64), resistance averaged 7% to co-trimoxazole, 2% to ciprofloxacin, and 1% to cefotaxime; no travel-associated strains were reported. This study shows that lockdowns due to the COVID-19 pandemic decreased the number of diagnosed enteropathogens and limited the emergence of resistant strains. Thus, our results reaffirm that travel remains the primary source of S. enterica infections in Finland.


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Open access publishing facilitated by Turun yliopisto, as part of the Wiley - FinELib agreement.


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